Title :
Hand held Dyson Relay Lens for anti-counterfeiting
Author_Institution :
Security Printing & Imaging, Hewlett Packard Labs., Bristol, UK
Abstract :
In this paper we describe the application, design and performance of a novel, small form factor Dyson Relay lens with inbuilt illumination configured for imaging printed marks. The high resolving power of the design clearly reveals the microscopic stochastic nature of printing processes and ink/substrate interactions. These imperfections provide a hard to copy “printed mark signature” that can be used for checking authenticity.
Keywords :
security of data; authenticity checking; hand held Dyson relay lens; imaging printed marks; ink-substrate interactions; microscopic stochastic nature; printed mark signature; Authentication; Costs; Counterfeiting; Ink; Lenses; Microscopy; Printers; Printing; Relays; Robustness; anti-counterfeiting; catadioptric; catoptric; forensics; high resolution; inspection; print parasitics; security;
Conference_Titel :
Imaging Systems and Techniques (IST), 2010 IEEE International Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
978-1-4244-6492-0
DOI :
10.1109/IST.2010.5548508
